Alfa calibration scans, rotation angle


    Alfa was reinstalled in the dome on 30oct09 after being worked on in the lab. Spider scans (heiles calibration scans) were taken with alfa on 02nov09 using beam 0 and 03nov09 using beams 0,2,3,4,5 to test its performance.

The setup:

Calibration run results:

The plots show the   calibration results (.ps) (.pdf):

Fitting for rotation angle error:

    Part of the pointing error could come from the alfa rotation angle being off. To test for this :
    Plots showing the pointing error vs rotation angle offset (.ps) (.pdf):


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